In: Statistics and Probability
What percentage of respondents is contacted typically during data validation?
Group of answer choices
10%
15%
25%
33%
40%
A researcher should consider answers to all of the following questions except _____ when selecting a particular test of significance.
Group of answer choices
how many samples are involved in the test?
are the samples related?
what type of data is involved?
what is the level of significance?
all of the above should be addressed
The level of significance chosen for hypothesis testing is based on _____.
Group of answer choices
the desired level of confidence one wishes to have in the results
the desired degree of precision
how much risk of a type I error one is willing to accept
the statistical test used
whether the sample is a probability sample
Solution:
What percentage of respondents is contacted typically during data validation?
Answer: 10%
Explanation:
Data validation is the process of ensuring whether the quality of the data is met. Usually 10% of respondents is contacted during data validation.
Question: A researcher should consider answers to all of the following questions except _____ when selecting a particular test of significance.
Answer: all of the above should be addressed
Explanation:
All the given options are necessary questions a researcher should answer before selecting a hypothesis test.
Question: The level of significance chosen for hypothesis testing is based on _____.
Answer: how much risk of a type I error one is willing to accept
Explanation:
The level of significance is the probability of making type I error and therefore, the level of significance is determined by seeing how much risk of a type I error one is willing to accept.